Abstract
When the power transmission systems are designed or improved, an understanding of gear dynamics is essential and very important. Gear systems are not easy to investigate because gear noise has to be carefully controlled. As a result, when designing and developing gear transmission systems, it is very important to grasp the noise and reduce it. Also, it is necessary to make a clear distinction between rattle noises and whine noises. The rattle noise occurs by mainly hitting the tooth, and whine noise occurs by mainly rubbing the tooth in meshing. Therefore, the whine noise is relatively related to high frequency characteristics. Our aim was to find a good way to evaluate whine noise with a numerical approach. When the gear dynamics are investigated to evaluate the whine noise, the dynamic transmission error (DTE) can be utilized. But, it is very difficult to obtain the DTE results by means of not only experimental ways but also numerical calculations. Although multi-body dynamics software has not been able to calculate the DTE practically yet, there is a possibility that the software can get the DTE results. Therefore, we propose a numerical modeling method to obtain the DTE results by using multi-body dynamics software (RecurDyn). To reduce the calculation time and represent flexibility, a rotational joint and force element with the bending stiffness are applied between gear teeth and trunk. Also the numerical results have been compared with the experimental data. The results show a good agreement with the experimental results.
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This paper was presented at the Joint Conference of the 3rd IMSD and the 7th ACMD, Busan, Korea, June, 2014. Recommended by Guest Editor Sung-Soo Kim and Jin Hwan Choi
Sunggyu Cho received his M.S. in Mechanical Engineering from Kyunghee University, South Korea in 2008. He is currently an associate research engineer at FunctionBay, Inc.
Juhwan Choi received his M.S. and Ph.D. in Mechanical and Aerospace Engineering from Seoul National University, South Korea in 2000 and 2009, respectively. He is currently a Chief Product Officer at FunctionBay, Inc.
Jin Hwan Choi received his M.S. and Ph.D. in Mechanical Engineering from the University of Illinois at Chicago in 1992 and 1996, respectively. He is currently a Professor at Kyunghee University of Mechanical Engineering.
Sungsoo Rhim received his B.S. and M.S. in Mechanical Engineering from Seoul National Univ., Korea, in 1990 and 1992, respectively, and his Ph.D. from Georgia Institute of Technology in 2000. He is currently an Associate Professor at Kyunghee University of Mechanical Engineering.
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Cho, S., Choi, J., Choi, J.H. et al. Numerical estimation of dynamic transmission error of gear by using quasi-flexible-body modeling method. J Mech Sci Technol 29, 2713–2719 (2015). https://doi.org/10.1007/s12206-015-0519-x
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DOI: https://doi.org/10.1007/s12206-015-0519-x